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calluna_vulgaris_l._hull [2017/10/19 21:03]
andreas
calluna_vulgaris_l._hull [2017/10/19 21:06] (aktuell)
andreas
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 "Found exclusively in Calluna vulgaris honeys, phenylacetic acid appears as a major aroma compound, its approximate concentration varying from 7.5 to 168 µg/g... this marker proved to be an odorant in our sniffing assessments of Calluna vulgaris honey extracts...\\ "Found exclusively in Calluna vulgaris honeys, phenylacetic acid appears as a major aroma compound, its approximate concentration varying from 7.5 to 168 µg/g... this marker proved to be an odorant in our sniffing assessments of Calluna vulgaris honey extracts...\\
-... it emerges that two 3,​5,​5-trimethylcyclohex-2-ene derivatives are predominant in Ericaceae-family honey samples, especially Calluna vulgaris samples. Two other compounds of similar structure were found exclusively in Calluna vulgaris samples: [[http://​pubchem.ncbi.nlm.nih.gov/​compound/​688492|dehydrovomifoliol]] (4-hydroxy-4-[3-oxo-1-butenyl]-3,​5,​5- trimethylcyclohex-2-en-1-one) and 4-(3-oxo-1-butynyl)-3,​5,​5-trimethylcyclohex-2-en-1-one. The dehydrovomifoliol contents determined in this study ranged from 31 to 310 µg/g. Similar concentrations have been reported for European heather honeys (Calluna or unspecified):​ 70±340 µg/g 2,​4-dichlorobenzaldehyde equivalent and for New Zealand Calluna vulgaris honeys: 107±185 µg/g 3-phenylprop-2-enoate equivalent. Dehydrovomifoliol,​ the direct precursor of aroma compounds such as vitispirans and theaspirans,​ is again suspected to result from abscissic acid degradation. As for 4-(3-oxo-1-butynyl)-3,​5,​5-trimethylcyclohex-2-en-1-one,​ it was detected in Calluna vulgaris honeys at concentrations ranging from 8 to 890 µg/g decane equivalent. This compound has been isolated from New Zealand Calluna honeys where its concentration was found to range from 1100 to 1400 µg/g 3-phenylprop-2-enoate equivalent. This 3,​5,​5-trimethylcyclohex-2-ene derivative can be considered a speci®c ​marker of Calluna vulgaris honeys."​ \\+... it emerges that two 3,​5,​5-trimethylcyclohex-2-ene derivatives are predominant in Ericaceae-family honey samples, especially Calluna vulgaris samples. Two other compounds of similar structure were found exclusively in Calluna vulgaris samples: [[http://​pubchem.ncbi.nlm.nih.gov/​compound/​688492|dehydrovomifoliol]] (4-hydroxy-4-[3-oxo-1-butenyl]-3,​5,​5- trimethylcyclohex-2-en-1-one) and 4-(3-oxo-1-butynyl)-3,​5,​5-trimethylcyclohex-2-en-1-one. The dehydrovomifoliol contents determined in this study ranged from 31 to 310 µg/g. Similar concentrations have been reported for European heather honeys (Calluna or unspecified):​ 70±340 µg/g 2,​4-dichlorobenzaldehyde equivalent and for New Zealand Calluna vulgaris honeys: 107±185 µg/g 3-phenylprop-2-enoate equivalent. Dehydrovomifoliol,​ the direct precursor of aroma compounds such as vitispirans and theaspirans,​ is again suspected to result from abscissic acid degradation. As for 4-(3-oxo-1-butynyl)-3,​5,​5-trimethylcyclohex-2-en-1-one,​ it was detected in Calluna vulgaris honeys at concentrations ranging from 8 to 890 µg/g decane equivalent. This compound has been isolated from New Zealand Calluna honeys where its concentration was found to range from 1100 to 1400 µg/g 3-phenylprop-2-enoate equivalent. This 3,​5,​5-trimethylcyclohex-2-ene derivative can be considered a specific ​marker of Calluna vulgaris honeys."​ \\
 [Floral origin markers of heather honeys: Calluna vulgaris and Erica arborea., Guyot, C., Scheirman, V., Collin, S., Food chemistry, Vol.64(1), 1999, 3-11] \\ [Floral origin markers of heather honeys: Calluna vulgaris and Erica arborea., Guyot, C., Scheirman, V., Collin, S., Food chemistry, Vol.64(1), 1999, 3-11] \\
 [[http://​www.uclouvain.be/​cps/​ucl/​doc/​inbr/​documents/​floral.pdf]] [[http://​www.uclouvain.be/​cps/​ucl/​doc/​inbr/​documents/​floral.pdf]]
calluna_vulgaris_l._hull.txt · Zuletzt geändert: 2017/10/19 21:06 von andreas